| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
2.4%
|
| 0 | 399 |
73.3%
|
|
| 1 | 16 |
2.9%
|
|
| 2 | 14 |
2.6%
|
|
| 3 | 10 |
1.8%
|
|
| 4 | 8 |
1.5%
|
|
| 5 | 20 |
3.7%
|
|
| 6 | 3 |
0.6%
|
|
| 7 | 5 |
0.9%
|
|
| 8 | 6 |
1.1%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 7 |
1.3%
|
|
| 12 | 5 |
0.9%
|
|
| 13 | 1 |
0.2%
|
|
| 14 | 1 |
0.2%
|
|
| 15 | 3 |
0.6%
|
|
| 16 | 1 |
0.2%
|
|
| 17 | 1 |
0.2%
|
|
| 18 | 1 |
0.2%
|
|
| 20 | 9 |
1.7%
|
|
| 22 | 1 |
0.2%
|
|
| 25 | 1 |
0.2%
|
|
| 30 | 1 |
0.2%
|
|
| 38 | 1 |
0.2%
|
|
| 40 | 3 |
0.6%
|
|
| 50 | 5 |
0.9%
|
|
| 55 | 1 |
0.2%
|
|
| 60 | 1 |
0.2%
|
|
| 75 | 1 |
0.2%
|
|
| 100 | 3 |
0.6%
|
|
| 120 | 1 |
0.2%
|
|
| 150 | 1 |
0.2%
|
|
| Sysmiss | 454 |